Ash-Shama'il Al-Muhammadiyah, Book 46, Hadith 318 (English)

Anas bin Maalik Radiyallahu 'Anhu reports: "No one was more beloved to the Sahaabah than Rasulullah Sallallahu 'Alayhi Wasallam. When they saw him they did not stand up, knowing that he did not approve of it".

حَدَّثَنَا عَبْدُ اللهِ بْنُ عَبْدِ الرَّحْمَنِ، قَالَ‏:‏ حَدَّثَنَا عَفَّانُ، قَالَ‏:‏ حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ، عَنْ حُمَيْدٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ‏:‏ لَمْ يَكُنْ شَخْصٌ أَحَبَّ إِلَيْهِمْ مِنْ رَسُولِ اللهِ صلى الله عليه وسلم، قَالَ‏:‏ وَكَانُوا إِذَا رَأَوْهُ لَمْ يَقُومُوا، لِمَا يَعْلَمُونَ مِنْ كَرَاهَتِهِ لِذَلِكَ‏.‏

also referenced under: Book 47, Hadith 335 (In-Book)